PEDAL-POWERED ECOXPOWER SMARTPHONE BICYCLE LIGHT – $88.99

Your bike-loving buds will flip when you give them these awesome pedal-powered EcoXPower Smart Phone bicycle lights that will allow them to harvest their own energy just by cycling. Once they pedal fast enough to reach a speed of 3 mph, the charger will kick in and let them power up their phones or a bike light. Brilliant!